I love reading up on classpectology stuff, but when it comes to actually writing it, I think I just have to vibe it a bit. From what we've seen, I think the system isn't deterministic. Certain class / aspect combos can have unexpected results. I also think the same combo can have different results in different players, and that there isn't necessarily an obvious link between the player's personality and classpect.

I have a Thief of Rage brewing who I originally thought would be either a Space or a Life player. She would probably prefer to be one of those too, given her love of zoology. At the moment, the only people (briefly) aware of her Rage talents are a number of unfortunate assasins, as she appears utterly harmless until she's directly threatened.